Carriage controlled stop setting and key operating mechanism for typewriting machines



2,450,925 RATING Oct. 12, 1948. F. J. TILLMAN CARRIAGE GONTROLLED STOP SETTING AND KEY OPE MECHANISM FOR TYPEWRITING MACHINES Filed June 25, 1942 w #@@w A @@SN QQ.. QQ@ @NNN @w *ww www NWN@ @QN was@ @Nw x @NNN QQ. @NN MEQ@ E@ @www hwg., @@.Wv m @Q xa QSN 55.5% Nwm SMS2 @mt MWPSQNN Emsa QQ@ Patented ct.V 12, A1948 CARRIAGE looNIltoLLEn simi? :summe `KEY DPERTING. MEoHANIsM Fon TYPEWmrI-NG MACHINES l El :The primary object of the invention is to'proyide. ya wsimple meanstolimit the return 'movee nient ofthe typewriteriplaten carriage each time to 'the vcolumn next to be operatedin 'until 'thel items of that account are entered. 'Another-object is to provide a locking means 'ClearjKey isprinted. l ,y

' Other .and further objects will'appear v'inthis specification, and will be specifically pointed out -in krtheappendel claims, reference being had'to the 'accompan-Ying'v drawings exemplifying this invention and inwhioh: y Y

Fig. 1 is a'front elevation. in'part of the 'typewriter 'calculating machine partly vbroken away, showing the :platen ycarriage Areturn stop' mech'- anisrn, 4the star key stop releasegmechanism the date key operating mechanismgand stop [setting mechanism.. y

Figz2isa side elevation inpartwof Fig, 1. FigSlisabill computed on'the machine. l AReferring .to the drawings: (see'Fig. 1) A isthe typewriter, 'thelower part of' the typewriterbeing broken away, as thisiinvention pertains .to a looking and releasing mechanism "for the type-V writer platen carriage incooperation with certan'typewriterkeys. Y Y

fTlre typewriter has the usual. keys 6.9L On the left side ,of the key board isa .special .star printing key IBB to indicate that .the register isv clear. On the right 4,side .of the. key lboartl .isla special' date printing key |156.' f

The typewriter hasthe usual ,platencarriagefB with aplaten-B-.I mounted Vin the side frames B-AZ and' 13e-53'.' Guide rodsB-andAB-falso m'o'unteiiv onjthe side frames B-2 .and vLB--3 (see.

Fig-'2) are slidablymoun'ted in tracks A-'I and A-B' mounted -on top of the .typewriter .side framesgAf-# ,and .A--Il A(see `1) Y. A pull ,tape I is attached at 2` to the side frame'B-- andthe other end of the pull tape I, isV attached toa spring ydrum C, to lpropel the typewriter' carriage tothe left. -The typewriter has the usual `escapement that. limits vthey travel. of the platen carriage to a step by step movement when it is being. propelled tothe leftbythe .tape |A and the drum C. Limiting thev back travelV of :th-a-:typeunter f carriage' Y upwardly extending cams H3 and fIHI'-, which' 1:3- claires.

f forthe'typewriterplaten carriage until the `VStar ote'd at "|"I6"t`o the front. plate IBI. The .upper end ofthe 'bellcrank' `Il`|5' which is in 'alignment with a stop pawl |18., has a stop abutment "ITI and a, locl'ingI abutment |"I'Ia. Thejstdp pwl |66 of the platen carriage, is'provided wi'tlglxa spring ISI to hold the pawl in operative position against a limitingpinil'; Thefpawl |18 which is in alignment withthe stop abutments ,|11 andf'LBS is.free to move overthesabutments when .the Gar-f riage moves to .the left .but willstopthe carriage frommoying 'to' vthe vright when the stop abutments are loekedLin set position-by they .slide-|618.. The stop abutment .|89 is apart of thehellcrank |81 .thatis pivoiiedat I-B tothe `front plateA IBI o'fv.,the.typewrter and is :provided lwith a locking abutment 4891i. The lower arm -of the bellcrank isfstrad'dled. by two upwardly .extending .cams -IBS and Y[86 whichsareasimilar tothe .cams ,|'7If3 and III. l

It willnowbe understood'that if the slide lplate L68 .is movedto .the left (by mechanism ,to bende-iy scribed) the ,stop abut-ments `|189 and yII1 willwbe moved into. alinement with the stop pawl- :|13- that isearried by .the platen 4carriage and the platen carriage willV be prevented from being pulled back fromthev lef-t Yto the yrigl'it beyond these .stop abutments .until the :slide plate l-I-lisA again moved Vto .the right and allows `the stop.- abutments, `'|89 `and I'I'I to zbe lowered out of alinement with VVthestop .pawl AI'Itl carried vuby the` platen carriage. The vslide plate .can-be movedV tened. vThe pin |59' extends througha slot ISU inthe plate |61 and carries a link V|58 whiohis attached to a date key. The'bellorank lever has an extension arm |82 and a pin `|83 is firmlyattached tothe extension arm `|82,.the pin -|83 extending through a slot |284 in 'thefront plate |61; This pin "|83 isin' alinement with'the'right' end( ofthe slide plate |58, and 'whenever the date key 4isA operatedor the platen carriage is pulled Ifarenough tothe right for.' the roller |65 to engage the upwardly extending arm |64 it will cause'tlf1'epin^|83 on' the extension arm |82 to 3 move the slide plate |68 to the left so the stop abutments |89 and |11 will be placed in alinement with the stop pawl |18 and the typewriter platen carriage will be stopped in that position whenever it is moved to the right against either of the said abutments |89 or |11,

Releasing the stop abutmentsf On the left side of the typewriter (as shown in Fig. 1) is a bellcrank having an upper arm |93 and a lower arm |9| pivoted at |92 to the- It will now be understood that when the star key |96 is operated the pull rod |95 will cause the upper arm |93 of the bellcrank to be moved downward and the lower arm |9| will move the slide plate |68 to the right so the stop abutments |89 and |11 will be lowered out of alinement with the stop pawl |18 and thev typewriter carriage can be moved to the right' until the roller |65 again engages and moves the upper arm |64 so the date will print and the stop pawl |18 will again be in alinement with the stop abutments |89 and |11.

The complete operation The paper is inserted into the platen carriager the stop pawl |18 engages the stop abutment |11 which is the item column. Rest and the amount 1.65 are written and the' carriage returned so that the stop pawl |18 engages the stop abutment |11. Bar and the amount 4.75 are written and. the carriage is again returned so that the stop pawl |18 engages the stop abutment. Misc and the amount 2.25 are written and the carriage tabulated to the credit column. As there is no credit .00 is written and the carriage moves to the new balance column where 11.65 is written and the star key is pressed. If the register is at zeros the star key will print a star, but if the operator forgets to press the star key the typewriter platen carriage will be held by the stop abutment |89 until she does press and print the star key.

What I claim is:

1. In combination, a calculating machine having key levers, a traveling platen carriage, means to propel the carriage in one direction, stop abutments adapted to be set in a plurality of zones to limit the return movement of the carriage, setting means for said stop abutments, means on the carriage for cooperation with said setting means, and releasing means for said stop abutments under the control of one of the key levers.

2. A typing machine having key levers, a carriage, means to propel the carriage in one direction, a stop to limit the return movement of the carriage, setting means for said stop having cooperation with one of the key levers, means on the carriage to actuate said setting means, and key operated means remote from said one key lever for releasing said stop.

3. A typing machine having a frame, a carriage on the frame having means for propelling it in one direction, a stop on the frame to limit the return movement of the carriage, key levers, setting means cooperable with one of the key levers and said stop, and means on the carriage to actuate said setting means and the key lever cooperable therewith.

4. A typing machine having a frame, a carriage on the frame having means for propelling it in one direction, a releasable stop on the frame to limit the return movement of the carriage, key levers, setting means cooperable with one of the Vkey levers and said stop, means on the carriage to actuate said setting means and the key lever cooperable therewith, and key operated releasing means for said stop.

5. A typing machine having a frame, a carriage on the frame and means for propelling it in one direction, a plurality of stops, a slide member on the frame for setting and unsetting said stops, a pawl borne by the carriage for cooperation with said stops, a key lever cooperable with one end of said member to set the stops, and a key lever cooperable with the opposite end of said member for unsetting the stops.

6. A typing machine having a frame, a carriage on the frame having means for propelling it in one direction, a releasable stop on the frame to limit the return movement of the carriage, setting means cooperable with said carriage and said stop, means on the carriage to actuate said setting means, key operated releasing means for said stop, and key operated means cooperable with said setting means.

7. A writing machine having a platen carriage, a stop borne by said carriage, a pair of stops positioned for alined cooperation with said carriage stop, simultaneous setting means for said pair of stops, a key lever, and actuating means for said setting means cooperable with both said carriage and said key lever at the end of the carriage return movement.

y8. A writing machine having a platen carriage, a pawl borne by said carriage, a pair of permanently spaced stops positioned for alined cooperation with said pawl, simultaneous setting means for said pair of stops. a key lever, actuating means for said setting means cooperable with both said carriage and said lever at one end of the carriage travel, and other means cooperable with said setting means for unsetting said pair of stops at the other end of the carriage travel.

9. A writing machine having a platen carriage, a pawl borne by the carriage, a pair of stops fixedly positioned for alined cooperation with said pawl, simultaneous setting means for said pair of stops actuated by the carriage at one end of its travel, and means for unsetting said pair of stops at the other end of the carriage travel.

10. A writing machine having a platen carriage, a pawl borne by the carriage, a plurality of permanently spaced stops positioned for alined cooperation with said pawl, simultaneous setting means for said plurality of stops actuated by the carriage, and other means comprising a key lever for unsetting said setting means.

11. A writing machine having a platen carriage for letter spacing and return movements, a frame, a plurality of horizontally alined and permanently spaced pivoted stops mounted on the frame, a stop borne by the carriage for cooperation with said frame stops, means paralleling said carriage for swinging and holding said frame stops in cooperating alinement with said carriage stop,

means borne by the carriage for actuating said swinging means on the return movement of the carriage, and key operated means cooperable with said swinging means for disengaging said frame stops from cooperating alinement with said carriage stop.

12. In a writing machine, a frame, a carriage mounted on the frame for letter vspacing and return movements, a stop borne by the carriage, a plurality of permanently spaced horizontally alined stops mounted on the frame with which the carriage stop is cooperable, setting means for the frame stops paralleling the carriage and operated by said carriage on its return movements, and other means operable for. unsetting said stop setting means at the end of the carriage letter spacing movements.

13. A writing machine having a carriage, permanently spaced columnar stops, means operable by the carriage on its return movement for setting said stops, and yieldable stop means on the carriage adapted to over-ride said stops when the carriage is travelled in letter spacing movement.

FERDINAND J. TILLMAN.

6 REFERENCES CITED The following references are of record in the rile of this patent:

UNITED STATES PATENTS Number Name Date 930,642 Briggs Aug. 10, 1909 987,153 McCann Mar 21, 1311 1,379,322 Tillman May 24, 1921 1,419,970 Keene June 20, 1922 1,440,118 Waldheim Dec:l 26, 1922 1,441,049 Waldheim Jan. 2, 1923 1,529,728 Tillman et al. Mar. 17, 1925 1,964,801 Walsoe July 3, 1934 2,065,629 Thompson Dec. 29, 1936 2,164,422 Pitman July 4, 1939 2,196,790 Dobson Apr. 9, 1940 2,322,524 Kittel June 22, 1943 2,341,470 Newberry Feb. 8, 1944 FOREIGN PATENTS Number Country Date 463,637 Great Britain 1937 

